Footwear upper



FIG. 1 is a perspective view of a footwear upper according to my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a left side view thereof; and,

FIG. 6 is a top side view thereof.

The broken lines in the figures that indicate stitching form a part of the claimed design. The broken lines in the figures that indicate environment in the form of an outsole form no part of the claimed design. 

CLAIM The ornamental design for a footwear upper, as shown and described. 